Engineering Worksheet: Prototypes and Fair Tests

Engineering lesson 5: Prototypes and fair tests · Set 708 · 40 questions

Engineer's tip (Test fairly, record honestly): Prototype = an early model made to test an idea. Fair test: change one thing, keep the rest the same, measure and record every result. Mean of three tests = (first + second + third) ÷ 3.

1. 1.🔍 Which is the odd one out? (a) test it only once (b) guess, do not measure (c) use a new load each time (d) measure the same way
2. 2.🧪 The first prototype held 220 g. After the team improved it, the new prototype held 390 g. How many more grams did it hold?
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 280 g, design B held 230 g and design C held 330 g. Which design was the weakest? (a) design A (b) design B (c) design C
4. 4.🧪 Is it good or poor testing to repeat each test? (a) poor testing (b) good testing
5. 5.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) load it with coins (c) strengthen the weak part (d) read the challenge rules
6. 6.🔍 Which is the odd one out? (a) repeat each test (b) change lots at once (c) record every result (d) use the same load
7. 7.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
8. 8.True or false: to measure the same way is good testing. (a) False (b) True
9. 9.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) load it with coins (c) read the challenge rules (d) build it with straws
10. 10.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) a broken part (d) the final product
11. 11.🧪 Three prototype bridges were tested with the same method. Design A held 140 g, design B held 190 g and design C held 240 g. Which design was the strongest? (a) design B (b) design C (c) design A
12. 12.🧪 The first prototype held 60 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
13. 13.🔍 Which is the odd one out? (a) guess, do not measure (b) measure the same way (c) record every result (d) change only one thing
14. 14.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
15. 15.🧪 A paper bridge was tested three times. It held 410 g, 260 g and 320 g. What is the mean (average) load it held, in grams?
16. 16.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
17. 17.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 160 g and design C held 210 g. Which design was the weakest? (a) design B (b) design C (c) design A
18. 18.True or false: to repeat each test is good testing. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) use the same load (b) measure the same way (c) test it only once (d) record every result
20. 20.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
21. 21.🧪 A paper bridge was tested three times. It held 290 g, 130 g and 210 g. What is the mean (average) load it held, in grams?
22. 22.True or false: to measure the same way is poor testing. (a) True (b) False
23. 23.🧪 Why repeat a test three times? (a) it looks busy (b) to get reliable results (c) the first is wrong (d) to use more paper
24. 24.True or false: to use the same load is good testing. (a) False (b) True
25. 25.🧪 The first prototype held 280 g. After the team improved it, the new prototype held 360 g. How many more grams did it hold?
26. 26.True or false: to guess, do not measure is good testing. (a) False (b) True
27. 27.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
28. 28.🧪 The first prototype held 90 g. After the team improved it, the new prototype held 100 g. How many more grams did it hold?
29. 29.🧪 A paper bridge was tested three times. It held 380 g, 270 g and 190 g. What is the mean (average) load it held, in grams?
30. 30.🧪 A paper bridge was tested three times. It held 360 g, 270 g and 240 g. What is the mean (average) load it held, in grams?
31. 31.True or false: to skip writing results is poor testing. (a) True (b) False
32. 32.🧪 A paper bridge was tested three times. It held 230 g, 120 g and 130 g. What is the mean (average) load it held, in grams?
33. 33.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “strengthen the weak part”? (a) strengthen the weak part (b) sketch three ideas
34. 34.🔍 Which is the odd one out? (a) change only one thing (b) repeat each test (c) skip writing results (d) measure the same way
35. 35.🧪 A paper bridge was tested three times. It held 310 g, 270 g and 260 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
37. 37.True or false: to record every result is poor testing. (a) False (b) True
38. 38.🔢 To build and test a straw bridge, which is the FIRST step? (a) choose and draw one (b) load it with coins (c) build it with straws (d) read the challenge rules
39. 39.🧪 Is it good or poor testing to skip writing results? (a) poor testing (b) good testing
40. 40.🧪 Is it good or poor testing to guess, do not measure? (a) poor testing (b) good testing

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